<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<script src="jquery-1.7.2.min.js"></script>
		<script>
			$(function(){
				$('input').click(function(){
					alert(123);
				})
//				$('input').trigger('click');
				$('input').click();
				
			})
		</script>
	</head>
	<body>
		<input type="button" value="点击事件" />
	</body>
</html>
